Powder and Bulk Engineering
Thursday, August 28, 2014
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Powder and Bulk Engineering is a technical publication devoted to readers in the bulk solids market, worldwide.
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Publication Date: 03/1995
Pages: 3
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Tubular drag conveyors reliably convey abrasive, compressible fertilizer powder

When installing a new facility to turn waste sludge into fertilizer, a treatment plant turned to tubular drag conveyors to convey fertilizer dust, chaff, and fines.

The Jones Island Waste Water Treatment Plant in Milwaukee, Wis., handles up to 390 million gallons of industrial, commercial, and residential waste water per day using physical and biological processes. Screens remove large objects [ranging from two-by-fours to coins] from the water, which has a 99 percent moisture content. The screened water flows to primary clarifiers, where the water stands and biosolids settle out. The contaminated water is then purified with microorganisms and clarified again to remove more solids. After disinfection with chlorine, the water is returned to the ecosystem.

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